PRODUCTION OF ARAMID FIBER AND PRODUCTION OF COMPOSITE MATERIAL OF THE ARAMID FIBER AND EPOXY RESIN COMPOSITION

摘要

PROBLEM TO BE SOLVED: To obtain the subject fiber having improved adhesivity to a matrix consisting of an epoxy resin and improved physical properties such as mechani cal strength as a composite material by treating an aramid fiber with a surface treating agent composed of a polyamide resin containing a specific phenolic hydroxyl group. ;SOLUTION: A surface treating agent is composed of a phenolic hydroxy group-containing polyamide resin produced at least from a dicarboxylic acid containing 50-100 mol% dicarboxylic acid of formula I (e.g. 5-hydroxyisophthalic acid) and a diamine component containing 50-100 mol% diamine of formula II (R₁ and R₂ are each H or a ≤4C alkyl) [e.g. bis(3-methyl-4-aminophenyl) methane] and a solvent containing an alcoholic component. An aramid fiber is impregnated with the surface-treating agent followed by drying.;COPYRIGHT: (C)1997,JPO